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2 min readWarningBank of England banking taxonomy 4.1.1Updated 11 November 2026

Intragroup financial reporting (detailed breakdown) Derivatives: a conditional check (SR10.00.04.01, Bank of England check boe_b0127_m)

A warning on the intragroup financial reporting (detailed breakdown) Derivatives template (SR10.00.04.01), in the intragroup financial reporting (core and detailed breakdowns) (RFB004) return.

Line4 Check runs it on the intragroup financial reporting (core and detailed breakdowns) (RFB004) return, proven on test files, check by check: the same outcome on all eight test files of that return.

Check your file for this ruleWhat to do if it fails

The rule in plain words

In each of 14 rows (listed below) of Intragroup financial reporting (detailed breakdown) Derivatives (SR10.00.04.01): if "Total Trading" (column 0030) is not zero, every value in "Financial assets held for trading and trading" (column 0010) must not equal 0, and every value in "Financial liabilities held for trading and trading" (column 0020) must not equal 0, and every value in "of which: sold" (column 0040) must not equal 0.

The headline gives only the template and the kind of check, because the rule is too long to say in a headline. The plain words above say all of it.

What to do if your return fails it

  1. 01Open the table below and find the cells the rule reads.
  2. 02The check applies only when its first part holds in your return. When it does, the second part must hold too: fix the second part, or correct the first.
  3. 03It runs only when your filing indicators mark SR10.00.04 as reported.
  4. 04This is a warning. It does not stop the return on its own, but your supervisor may ask you to explain it.

The cells it reads

Intragroup financial reporting (detailed breakdown) Derivatives (SR10.00.04.01)

Rows

  • R0010Interest rate
  • R0035options
  • R0070Equity
  • R0095options
  • R0130Foreign exchange and gold
  • R0155options
  • R0190Credit
  • R0210Credit default swap
  • R0220Credit spread option
  • R0230Total return swap
  • R0240Other
  • R0250Commodity
  • R0270Other
  • R0290DERIVATIVES

Columns

  • C0010Financial assets held for trading and trading
  • C0020Financial liabilities held for trading and trading
  • C0030Total Trading
  • C0040of which: sold

Which returns it applies to

Line4 Check runs it on the intragroup financial reporting (core and detailed breakdowns) (RFB004) return on Bank of England banking taxonomy 4.1.1. The Bank of England applies it to intragroup financial reporting (core and detailed breakdowns) (RFB004) returns, as a warning.

The Bank’s own words and formula

The plain words above spell out the Bank’s formula, with each cell named from its templates. In the Bank of England’s list of validations, word for word:

boe_b0127_m: T1: SR10.00.04.01; rows: {SR10.00.04.01, r0010;0035;0070;0095;0130;0155;0190;0210;0220;0230;0240;0250;0270;0290}; Expression: if ({SR10.00.04.01, c0030} != 0) then ({SR10.00.04.01, c0010} != 0 and {SR10.00.04.01, c0020} != 0 and {SR10.00.04.01, c0040} != 0)
Show the formulaShow

The Bank of England's formula. Cells are written as {t: table, r: row, c: column}.

if ({t: SR10.00.04.01, c: 0030} != 0) then ({t: SR10.00.04.01, c: 0010} != 0 and {t: SR10.00.04.01, c: 0020} != 0 and {t: SR10.00.04.01, c: 0040} != 0) else true()

Where it applies, in the Bank's words (its scope):

scope({t: SR10.00.04.01, r: 0010; 0035; 0070; 0095; 0130; 0155; 0190; 0210; 0220; 0230; 0240; 0250; 0270; 0290, seq: False, f: banking, fv: structural_reform})

Every PRA banking rule on SR10.00.04.01

Checks like this one, run at the point of submission, are the first step to real-time supervision. Line4 builds SupTech software for financial regulators that runs checks like these as each return arrives.